Fixed assets planning in bpc 10

Hi Friends,

I have one requirement from client on Fixed assets planning, I need to calculate depreciation on asset class level, So can any one help me giving some idea on Fixed assets depreciation calculation , like how to do it. what accounts we need to create and any flows we need to use.

Ex:In Building we have 10 assets , asset class building we need to calculate depreciation. on SLM. Pls explain me what will be the best solution and how to calculate deprecation and post to BS.

Regards,

Ravi.